--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-04-01T00:00:00Z' dns-udp-queries-received-ipv4: 2292373926 dns-udp-queries-received-ipv6: 513314391 dns-tcp-queries-received-ipv4: 39769302 dns-tcp-queries-received-ipv6: 13636292 dns-udp-responses-sent-ipv4: 2264246036 dns-udp-responses-sent-ipv6: 511788775 dns-tcp-responses-sent-ipv4: 37105722 dns-tcp-responses-sent-ipv6: 12984207